co2-capture
(3)
Capture6
Capture6 is a climate-tech company that turns the salty waste brine left over from desalination and water treatment into two things the world needs: fresh water and permanently removed atmospheric CO2. Its integrated platform converts brine into a CO2-absorbing solvent in a single step, eliminating costly brine disposal while producing freshwater, green chemicals, and durable carbon removal. Founded in 2021 and based in the San Francisco Bay Area with operations in New Zealand, the public benefit corporation works with water utilities, industry, and governments across California, Western Australia, New Zealand, and South Korea.
Utility Global
Utility Global is a Houston-based clean-energy technology company whose proprietary eXERO platform and H2Gen system produce high-purity hydrogen and a capture-ready CO2 stream from industrial off-gases and biogases - without using external electricity. By bolting onto the existing infrastructure of steel mills, refineries, petrochemical plants and other hard-to-abate sites, the company aims to make industrial decarbonization economically competitive with fossil-based hydrogen rather than dependent on subsidies or pilots.
Mantel
Mantel is a Cambridge, Massachusetts cleantech company building a molten-salt approach to industrial carbon capture. Spun out of MIT in 2022, its molten borate materials operate inside the high-temperature guts of boilers, kilns and furnaces, absorbing more than 95% of CO2 while recovering high-grade heat that offsets the energy cost of capture. The pitch is blunt: cut the cost of capturing a ton of carbon by more than half and make it work in the dirtiest, hottest corners of heavy industry - cement, steel, pulp and paper, power and refining.